ISP - MKE

$109 Find Cheap Flights from Islip to Milwaukee

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Milwaukee departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Milwaukee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Milwaukee, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Milwaukee, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Islip to Milwaukee (ISP-MKE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Milwaukee that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Milwaukee

Mon, Jul 14 - Mon, Jul 21
Southwest Logo
5:45 pm - 11:25 pmISP-MKE
6h 40m1 stop
Southwest Logo
6:35 pm - 12:05 amMKE-ISP
4h 30m1 stop
$288Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
Southwest Logo
5:45 pm - 11:25 pmISP-MKE
6h 40m1 stop
Southwest Logo
6:35 pm - 12:05 amMKE-ISP
4h 30m1 stop
$303Southwest
Find Deal
Sun, Jul 13 - Sun, Jul 20
Southwest Logo
1:20 pm - 7:30 pmISP-MKE
7h 10m1 stop
Southwest Logo
7:05 am - 5:20 pmMKE-ISP
9h 15m1 stop
$320Southwest
Find Deal
Mon, Jul 14 - Mon, Jul 21
Southwest Logo
2:40 pm - 10:00 pmISP-MKE
8h 20m2 stops
Southwest Logo
6:35 pm - 12:05 amMKE-ISP
4h 30m1 stop
$330Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
Southwest Logo
12:05 pm - 5:50 pmISP-MKE
6h 45m2 stops
Southwest Logo
6:35 pm - 12:05 amMKE-ISP
4h 30m1 stop
$345Southwest
Find Deal
Sun, Jul 13 - Sun, Jul 20
Southwest Logo
1:20 pm - 7:30 pmISP-MKE
7h 10m1 stop
Southwest Logo
5:00 am - 5:25 pmMKE-ISP
11h 25m2 stops
$371Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
Southwest Logo
6:00 am - 2:45 pmISP-MKE
9h 45m2 stops
Southwest Logo
5:10 am - 11:55 amMKE-ISP
5h 45m2 stops
$397Southwest
Find Deal
Sun, Jul 13 - Sun, Jul 20
Southwest Logo
6:00 am - 1:45 pmISP-MKE
8h 45m2 stops
Southwest Logo
5:00 am - 5:25 pmMKE-ISP
11h 25m2 stops
$423Southwest
Find Deal
Fri, Jul 11 - Mon, Jul 14
 Logo
3:59 pm - 3:42 pmISP-MKE
24h 43m3 stops
 Logo
6:42 pm - 1:24 pmMKE-ISP
17h 42m2 stops
Sun, Jul 13 - Sun, Jul 20
 Logo
7:39 pm - 5:47 pmISP-MKE
23h 08m3 stops
 Logo
4:37 pm - 3:19 pmMKE-ISP
21h 42m2 stops
Useful Info

Good to know

Cheapest flight$109
Flight from Islip to Milwaukee

When to book flights from Islip to Milwaukee

Are your dates flexible? Find out the best times to travel from Islip to Milwaukee based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to Milwaukee

  • What is the cheapest flight from Islip to Milwaukee?

    In the last 3 days, the lowest price for a flight from Islip to Milwaukee was $109 for a one-way ticket and $288 for a round-trip.

  • Do I need a passport to fly between Islip and Milwaukee?

    A passport is not required to fly from Islip to Milwaukee.

  • Which aircraft models fly most regularly from Islip to Milwaukee?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Milwaukee?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Milwaukee.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Milwaukee?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Milwaukee?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Milwaukee with an airline and back to Islip with another airline. Booking your flights between Islip and MKE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Milwaukee?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Milwaukee from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Islip to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from Islip to Milwaukee. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Milwaukee? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4279 reviews
7.1Food
8.0Comfort
8.6Crew
8.2Boarding
7.6Entertainment
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Everything you need to know for your flight from Islip to Milwaukee

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